Half-heartedly mock lame eccentric touring American city (9)
I believe the answer is:
jerusalem
'city' is the definition.
(Jerusalem is an example)
'half-heartedly mock lame eccentric touring american' is the wordplay.
I cannot quite see how this works, but
an anagram of 'lame' is 'alem' which is located in the answer.
'american' could be 'us' (United States) and 'us' is found in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for jerusalem that I've seen before include "Zion" , "See 17" , "Holy city in the Middle East" , "Rousing anthem to words by William Blake" , "Number of Women's Institute members" .)